Stuffing box support



i a SEARCH ROOM Nov. 1, 1949 A. w. MEYNIG 2,485,952

STUFFING BOX SUPPORT #iled Oct. 29, 1947 2 Sheets-Sheet 1 INVENTOR BY W.

ATTORNEYS;

Ngvll, 1949 Filed Oct. 29, 1947 'IIIIIHIIHI A. W. MEYNIG STUFFING BOXSUPPORT 2 Sheets-Sheet 2 INVENTOR I 1 BY I 1 ATTORNEYS Patented Nov. 1,1949 UNITED STATES PATENT OFFICE STUFFING BOX SUPPORT August W. Meynit,Westbrook, Tex.

Application October 29, 1947, Serial No. 782,890

4 Claims.

By way of explanation, it might be stated that when stufling boxpackings become worn and allow the passage of oil thereby, packingswhich are usually rubber, are replaced. To replace these packingrubbers, it is necessary to detach the upper portion of the stufling boxfrom the lower portion, and elevate the upper portion to a position outof the way of the operator installing the new rubbers.

By known means for holding the upper portion of the packing boxsuspended, the upper portions of the stufflng boxes frequently fallresulting in injury to the hands of the person making the installation.

It is therefore the primary object of the present invention to providemeans which will securely hold the upper portion of a stufling boxelevated, while the packing rubbers of the stufling box are beingreplaced.

An important object of the invention is to provide a device of thischaracter which will be made a part of the upper portion of the stuilingbox, so that it will be accessible at all times for use.

Another object of the invention is to provide a holder of this characterwhich will securely gri the polish rod, the gripping means being of thetype to become wedged under the weight of the upper section of thestufilng box, thereby insuring against the upper section of the stumngbox slipping downwardly.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts, hereinafter more fully describedand pointed out in the claims, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

Referring to the drawings Figure 1 is a perspective view illustrating apolish rod and a stufling box equipped with a supporting deviceconstructed in accordance with the invention, as mounted thereon.

Fig. 2 is an elevational view illustrating the upper section of thestufiing box as elevated and held in place by the device forming thesubject matter of the present invention.

Fig. 3 is an enlarged elevational view illustrating the pivoted latchmembers which cooperate with the holding plate for normally holding theplate in its inactive position.

Fig. 4 is a perspective view of the plate and latch members which aresupported on the plate.

Fig. 5 is an elevational view partly in section, illustrating the uppersection of the stufling box as equipped with a holding deviceconstructed in accordance with the invention.

Fig. 6 is a perspective view of the rubber grommet which is fittedwithin the opening of the holding plate.

Referring to the drawings in detail, the reference character 5 indicatesa section of a polish rod, and the reference character 6 indicates thelower portion of a stufling box which is connected at the top of thetubing of the well, by the usual threaded means.

The stuffing box includes an upper section 1 which is connected to thelower portion thereof by the threads 8, the upper section of thestufilng box being provided with hand grips 9, by means of which theupper section of the stumng box may be handled and rotated to secure itby the threaded connection, to the lower section of the stuifing box.

The lower section of the stumng box carries the usual stufimg boxpacking rubbers, not shown, which become worn due to the operation ofthe polish rod therethrough. To replace the rubbers, it is necessary todetach the upper section of the stuffing box and elevate it to aposition as shown by Fig. 2 of the drawings, whereupon the operator willhave easy access to the rubbers.

The support embodies a substantially circular plate In formed with acentral opening so that it may be fitted over a polish rod of a pumpstructure, the opening of the plate being appreciably larger than thepolish rod over which the plate is positioned. The plate I0 is providedwith an extension ll formed with an elongated opening providing a keeperfor the latch members l2 that are pivotally mounted on the bracket I3that in turn is secured to the upper surface of the upper section 1 ofthe stufling box, as clearly shown by the drawings.

The reference character I4 indicates an extension disposed directlyopposite to the extension II, the extension It being provided with ahinge section l5 that is bent around the hinge pin it, forming a part ofthe stationary section I l of the hinge, the stationary section I! ofthe hnge being secured to the opposite side of the upper section I ofthe stufling box. It will of course be understood that the opening inthe uppersection of the stufllng box is also appreciably larger than thepolish rod, to permit the upper section I of the stuiiing box to tilt asclearly illustrated by Fig. 2 of the drawings. Under normal conditions.the plate III will assume the position as shown by Fig. 1 of thedrawings, wherein the inner surface of the.opening of the plate II] willbe spaced from the polish rod.

Should it be desired to elevate the upper section of the stufling box tothe position as shown by Fig. 2 of the drawings, where it will be out ofthe way to give the person removing the packing rubbers ample room toaccomplish this work, the latch members l2 are moved to disengage thekeeper opening of the plate I 0, allowing the plate to swing upwardly.

It is obvious that due to the mounting of the plate on the upper sectionof the stuifing box, the plate will take an inclined position and becaused to wedge against the polish rod, supporting the upper section ofthe stuffing box in an elevated position.

It may be desirable to use a rubber friction ring in connection with theplate l0, and in this case, a grommet such as indicated by the referencecharacter [8 may be used, the grommet being constructed circular information to fit within the opening of the circular plate ID, thegrommet having an annular groove so that it may be positioned and firmlysecured to the plate, as shown by Fig. 5.

From the foregoing detail description, it is believed that a furtherdescription as to the operation of the device in supporting the uppersection of a stufifing box, is unnecessary.

Having thus described the invention, what is claimed is:

1. A temporary support for supporting the upper section of the stuffingbox of an oil well pumping apparatus on the polish rod thereof,comprising a plate pivotally connected with the upper section of thestuffing box, said plate having an opening of a diameter appreciablygreater than the diameter of the polish rod, means for normally holdingthe plate parallel with the upper 40 section, said plate adapted toswing upwardly at an oblique angle with respect to the polish rod, thewall of the opening binding against the polish rod supporting the uppersection of the stufling box in spaced relation with the main portion ofthe stuffing box.

2. A temporary support for supporting the upper section of the stuifingbox of an oil well pumping apparatus on the polish rod thereof duringpacking of the lower section of the stufling box, comprising a platepivotally connected at one of its ends with the upper section of thestuffing box said plate having an opening through which the polish rodextends, pivoted latch members connected with the opposite end of theplate normally holding the plate in spaced parallel relation with theupper section of the stufllng box, said latch member adapted to releaseone side of the plate whereby the plate swings upwardly, the wall of theplate engaging the polish rod setting up a binding action, supportingthe upper section of the stuffing box spaced from the lower sectionthereof.

3. A temporary support for supporting the upper section of the stufiingbox of an oil well pumping apparatus on the polish rod thereof in spacedrelation with the main portion of the stuffing box, comprising a platepivotally mounted on the upper section of the stuffing box in spacedrelation therewith, said plate having a keeper opening, latch membersextended into the keeper opening and adapted to normally hold the platein parallel relation with the upper section of the stufiing box, saidlatch members adapted to release the plate for pivotal movement saidplate having an opening through which the polish rod extends, theopening of the plate being appreciably larger in diameter than thepolish rod, the wall of said opening binding against the polish rod whenthe plate swings upwardly, supporting the upper section of the stuffingbox on the polish rod.

4. A temporary support for supporting the upper section of the stuffingbox of an oil well pumping apparatus on the polish rod in spacedrelation with the lower section of the stufing box during packing of thestuifing box, comprising a member having an opening through which thepolish rod extends, pivotally mounted on the upper surface of the uppersection of the stufiing box, the opening of the pivoted member being ofa diameter appreciably greater than the diameter of the polish rodextended therethrough, means for normally holding the pivoted member inparallel relation with the upper surface of the upper section of thestufling box, and said pivoted member being movable to a position ingripping relation with the polish rod supporting the upper section ofthe stufllng box elevated above the main section thereof.

AUGUST W. MEYNIG.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,801,448 Neeley 'Apr. 21, 19311,803,569 Taylor May 5, 1931 1,845,143 Friesner Feb. 16, 1932 2,266,935Stephens et al. Dec. 23, 1941

